Abstract
Seeds of flax (Linum usitatissimum L., Giza 9) were soaked in 5ml of either tap water, stigmasterol (100 ppm) or folic acid(200 ppm) for 12 hand then sown in clay/sand soil (2/1, w/w) in plastic pots. On the 24th day after sowing (24 DAS),water regime was applied as the first group was divided into 2 parts, one watered weekly (control) and the other watered every 2 weeks (drought) while both soaked groups were watered every 2 weeks (drought+stigmasterol) and (drought+folic acid), respectively and samples were taken until seed harvest. Drought resulted in a significant decrease in shoot height and root length, fresh and dry weights of shoot and root, leaf number, number of capsules and seeds and photosynthetic pigments contents. Meanwhile, total insoluble sugars and protein were significantly decreased; however, increases were detected in total soluble sugars, proline, lipid peroxidation and H2O2. Seed priming with either stigmasterol or folic acid caused an increases in fresh and dry weights, leaf number, number of capsules, number of seeds and protein content comparing with stressed plants but without reaching control values concomitant with an enhancement in proline accumulation and decreases in H2O2and lipid peroxidation. These findings conclude that presoaking of flax seeds with stigmasterol or folic acid improved to some extent- plant growth under drought due to the improvement of photosynthetic apparatus and anabolic processes synchronous with alleviation of oxidative stress and elevation of proline with its role in osmoregulation.
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Claims 11
Claim · model-written summary
Drought significantly decreased shoot height, root length, shoot and root weights and leaf number.
- Taxon
- flax
Linum usitatissimume0 - Material
- Giza 9e0
- Treatment
- Droughte1
- Outcome
- shoot height and root length, fresh and dry weights of shoot and root, leaf numbere1
- Direction
- decreasee1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Seeds of flax (Linum usitatissimum L., Giza 9)”
e1“Drought resulted in a significant decrease in shoot height and root length, fresh and dry weights of shoot and root, leaf number, number of capsules and seeds and photosynthetic pigments contents.”
Claim · model-written summary
Drought significantly decreased capsule and seed numbers.
- Taxon
- flaxLinum usitatissimume0
- Treatment
- Droughte1
- Outcome
- number of capsules and seedse1
- Direction
- decreasee1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Seeds of flax (Linum usitatissimum L., Giza 9)”
e1“Drought resulted in a significant decrease in shoot height and root length, fresh and dry weights of shoot and root, leaf number, number of capsules and seeds and photosynthetic pigments contents.”
Claim · model-written summary
Drought significantly decreased photosynthetic pigment content.
- Taxon
- flaxLinum usitatissimume0
- Treatment
- Droughte1
- Outcome
- photosynthetic pigments contentse1
- Direction
- decreasee1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Seeds of flax (Linum usitatissimum L., Giza 9)”
e1“Drought resulted in a significant decrease in shoot height and root length, fresh and dry weights of shoot and root, leaf number, number of capsules and seeds and photosynthetic pigments contents.”
Claim · model-written summary
Drought significantly decreased total insoluble sugars and protein.
- Taxon
- flaxLinum usitatissimume0
- Treatment
- Droughte2
- Outcome
- total insoluble sugars and proteine1
- Direction
- decreasede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Seeds of flax (Linum usitatissimum L., Giza 9)”
e1“total insoluble sugars and protein were significantly decreased”
e2“Drought resulted in a significant decrease”
Claim · model-written summary
Drought increased total soluble sugars, proline, lipid peroxidation and H2O2.
- Taxon
- flaxLinum usitatissimume0
- Treatment
- Droughte2
- Outcome
- total soluble sugars, proline, lipid peroxidation and H2O2e1
- Direction
- increasese1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Seeds of flax (Linum usitatissimum L., Giza 9)”
e1“increases were detected in total soluble sugars, proline, lipid peroxidation and H2O2.”
e2“Drought resulted in a significant decrease”
Claim · model-written summary
Stigmasterol seed priming increased biomass, leaf number, capsules, seeds and protein relative to drought alone without reaching control values.
- Taxon
- flaxLinum usitatissimume0
- Treatment
- stigmasterol (100 ppm)e0
- Outcome
- fresh and dry weights, leaf number, number of capsules, number of seeds and protein contente1
- Direction
- increasese1
- Qualifier
- without reaching control valuese1
- Comparator
- stressed plantse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Seeds of flax (Linum usitatissimum L., Giza 9) were soaked in 5ml of either tap water, stigmasterol (100 ppm) or folic acid(200 ppm)”
e1“Seed priming with either stigmasterol or folic acid caused an increases in fresh and dry weights, leaf number, number of capsules, number of seeds and protein content comparing with stressed plants but without reaching control values”
Claim · model-written summary
Folic acid seed priming increased biomass, leaf number, capsules, seeds and protein relative to drought alone without reaching control values.
- Taxon
- flaxLinum usitatissimume0
- Treatment
- folic acid(200 ppm)e0
- Outcome
- fresh and dry weights, leaf number, number of capsules, number of seeds and protein contente1
- Direction
- increasese1
- Qualifier
- without reaching control valuese1
- Comparator
- stressed plantse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Seeds of flax (Linum usitatissimum L., Giza 9) were soaked in 5ml of either tap water, stigmasterol (100 ppm) or folic acid(200 ppm)”
e1“Seed priming with either stigmasterol or folic acid caused an increases in fresh and dry weights, leaf number, number of capsules, number of seeds and protein content comparing with stressed plants but without reaching control values”
Claim · model-written summary
Stigmasterol priming enhanced proline accumulation and decreased H2O2 and lipid peroxidation under drought.
- Taxon
- flaxLinum usitatissimume0
- Treatment
- stigmasterol (100 ppm)e0
- Outcome
- proline accumulatione1
- Direction
- enhancemente1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Seeds of flax (Linum usitatissimum L., Giza 9) were soaked in 5ml of either tap water, stigmasterol (100 ppm) or folic acid(200 ppm)”
e1“concomitant with an enhancement in proline accumulation and decreases in H2O2and lipid peroxidation.”
Claim · model-written summary
Folic acid priming enhanced proline accumulation under drought.
- Taxon
- flaxLinum usitatissimume0
- Treatment
- folic acid(200 ppm)e0
- Outcome
- proline accumulatione1
- Direction
- enhancemente1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Seeds of flax (Linum usitatissimum L., Giza 9) were soaked in 5ml of either tap water, stigmasterol (100 ppm) or folic acid(200 ppm)”
e1“concomitant with an enhancement in proline accumulation and decreases in H2O2and lipid peroxidation.”
Claim · model-written summary
Stigmasterol priming decreased H2O2 and lipid peroxidation under drought.
- Taxon
- flaxLinum usitatissimume0
- Treatment
- stigmasterol (100 ppm)e0
- Outcome
- H2O2and lipid peroxidatione1
- Direction
- decreasese1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Seeds of flax (Linum usitatissimum L., Giza 9) were soaked in 5ml of either tap water, stigmasterol (100 ppm) or folic acid(200 ppm)”
e1“decreases in H2O2and lipid peroxidation”
Claim · model-written summary
Folic acid priming decreased H2O2 and lipid peroxidation under drought.
- Taxon
- flaxLinum usitatissimume0
- Treatment
- folic acid(200 ppm)e0
- Outcome
- H2O2and lipid peroxidatione1
- Direction
- decreasese1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Seeds of flax (Linum usitatissimum L., Giza 9) were soaked in 5ml of either tap water, stigmasterol (100 ppm) or folic acid(200 ppm)”
e1“decreases in H2O2and lipid peroxidation”
The same questions in other papers
stigmasterol · physiology: oxidative · Linum usitatissimum (flax)Results agree
1 paper in the same direction as this paper
- positive
drought · physiology: photosynthesis · Linum usitatissimum (flax)Results agree
3 papers in the same direction as this paper
- negative
- negative
- negative
drought · yield · Linum usitatissimum (flax)Results agree
3 papers in the same direction as this paper
- negative
- negative
- negative
drought · growth · Linum usitatissimum (flax)Results agree
8 papers in the same direction as this paper
- negative
- negative
- negative
5 papers more in this group
See all 9 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.